Disentangling the reaction mechanisms of weakly bound nuclei

GOMES, P.; PADRON, I; CREMA, E; CAPURRO, O; FERNÁNDEZ NIELLO, J; MARTI, G. V; ARAZI, A; TROTTA, M; LUBIAN, J; ORTEGA, M. E; PACHECO, A. J; RODRÍGUEZ, M. D; TESTONI, J. E; ANJOS, R. M; CHAMON, L. C; DASGUPTA, M; HINDE, D. J; HAGINO, K

PHYSICS LETTERS B

ELSEVIER

Año: 2006 vol. 634 p. 356 - 361

0370-2693

Complete and incomplete fusion cross sections for the 9Be + 144Sm reaction have been measured at near-barrier energies, using the delayed X-ray detection technique. At above-barrier energies these show a suppression of complete fusion for this weakly bound projectile on an intermediate mass target. The suppression factor, attributed to 9Be break-up, was deduced from a comparison of complete fusion yields with coupled-channels calculations, and appears consistent with measured incomplete fusion product yields. At 10%, it is considerably smaller than the value of 30% previously found for a 208Pb target. Simultaneous measurements of elastic and inelastic scattering permit a clearer picture of the reaction mechanisms.